City's Department of Administrative Hearings properly found that police officer ad violated Municipal Code of Chicago by failing to reimburse City for expenses incurred when he did not report his divorce until 15 months later and failed to remove spouse as beneficiary of his insurance benefits. Court properly admitted and considered affidavit of City's benefit claims supervisor and keeper of business records. City's rules for administrative hearings allowed hearsay evidence, if of a type commonly relied upon by reasonably prudent persons, Plaintiff could have exercised his right to cross-examine affiant by having ALJ subpoena her. ALJ was reasonable in drawing inference that Plaintiff failed to file spouse-removal form given absence of form from City's records. (FITZGERALD SMITH and PUCINSKI, concurring.)